18results about How to "Prevent coalescence" patented technology

The invention provides a nano foam scrubbing agent suitable for environments with various temperatures and mineralization degrees as well as a preparation method and application of the nano foam scrubbing agent. The nano foam scrubbing agent comprises an anionic surfactant, a nonionic surfactant, a zwitterionic surfactant, foam stabilizing particles and a solvent, the total mass concentration of the anionic surfactant, the nonionic surfactant and the zwitterionic surfactant in the nano foam scrubbing agent is 0.1-1.0 wt%, and the mass concentration of the foam stabilizing particles is 0.1-0.5 wt%; the mass ratio of the anionic surfactant to the nonionic surfactant to the zwitterionic surfactant is (10-30): (15-20): (15-25). The foam scrubbing agent disclosed by the invention has relatively good foaming, foam stabilizing and liquid carrying capacities at 35-95 DEG C in a mineralization degree range of 10000-50000 mg / L, has very good salt resistance and calcium and magnesium ion resistance, and can adapt to environments with various temperatures and different mineralization degrees.

The invention discloses a preparation method of novel stimuli-responsive foam, and belongs to the field of colloid and interface chemistry. The novel foam is jointly stabilized by an ionic surfactant and nanoparticles with the same charge. The stimulation-responsiveness of the foam takes an anion-cation pair as a trigger mechanism. The microstructure of the foam is different from that of common foam and Pickering foam, a low-concentration surfactant is adsorbed on a water / air interface and endows bubbles with surface charges, and nanoparticles are distributed in a water phase to form a thick water film, so that the distance between the bubbles is increased, Van der Waals gravitation between the bubbles is greatly reduced, and therefore, the foam can be used for preparing the water-based foam. And through repulsive interaction of double electric layers between particles, bubbles and bubbles and between particles and bubbles, coalescence of the bubbles is prevented, and stable bubbles are formed. When the anionic surfactant with the same mole as the cationic surfactant is added into the stable foam, the anionic surfactant and the cationic surfactant form ion pairs through electrostatic attraction, so that the cationic surfactant is desorbed from a water / air interface, and the foam disappears.

The invention discloses a high-sulfur high-nitrogen inferior diesel oil processing method, which comprises: (1) in the presence of hydrogen, mixing an inferior diesel oil raw material with an alkali metal, and feeding into an alkali metal treatment reaction zone; (2) feeding the reaction effluent obtained in the step (1) into a separation unit to obtain a liquid-phase material flow; (3) mixing the liquid-phase material flow in the step (2) with an oxidizing agent, and enabling the mixture to enter an oxidation reaction zone for reaction; and (4) the reaction effluent obtained in the step (3) enters an extraction unit, and a final clean diesel oil product is obtained under the action of an extraction agent. According to the method, the inferior diesel oil is processed by adopting a non-hydrogenation technical means, and the clean diesel oil with low sulfur, low nitrogen and high cetane number can be directly produced.

This invention relates to the field of health food technology, specifically to a method for preparing a tea oil-based paste and its beverage. This invention develops a tea oil-based paste that can be directly mixed with water. By compounding multiple components such as protein, polysaccharides, and curcumin, and using high-pressure homogenization technology to construct a stable tea oil dispersion system, it significantly improves the problems of oil separation and greasy taste in tea oil beverages. The unsaturated fatty acids and natural antioxidants abundant in tea oil in this invention optimize the nutritional structure of the beverage from both fatty acid composition and functional activity perspectives. After mixing the tea oil-based paste with water, a tea oil-based instant beverage with both nutritional value and good mixing properties can be obtained, aligning with the modern consumer market trend of healthier, more functional, and more convenient beverages.

The invention discloses a method for preparing a stable amino silicon oil emulsion by regulating and controlling the electrical property and potential of silica sol particles and the emulsion, and also discloses a method for preparing the stable amino silicon oil emulsion by regulating and controlling the electrical property of the silica sol particles. The silicone oil emulsion comprises the following materials in parts by weight: 20-30 parts of amino silicone oil, 2-5 parts of an emulsifier, 2-5 parts of silica sol particles, 1-3 parts of a pH regulator and 60-80 parts of deionized water. The invention also provides a specific preparation method. The problems that a traditional silicone oil emulsion is poor in stability and high in emulsifier dosage are solved, and the prepared silicone oil emulsion has excellent dispersion stability; meanwhile, the method has the characteristics of low cost and simple process.

This invention relates to a stabilizer for preparing polycaprolactone and its application. The stabilizer is an asymmetric block copolymer comprising polycaprolactone segments and carbonyl-dependent segments, with an anchor-to-solubility ratio of 0.5 to 5.0, wherein the anchor-to-solubility ratio is the ratio of the number-average molecular weight of the carbonyl-dependent segments to that of the polycaprolactone segments. When the stabilizer of this invention is used to prepare polycaprolactone, polycaprolactone microspheres with controllable particle size range, narrow particle size distribution, and high sphericity can be obtained.

The invention discloses a method for preparing an oleogel high internal phase p-pickering emulsion based on a compound formed by potato protein fibers and Arabic gum. Comprising the following steps: incubating a potato protein aqueous solution under a low pH condition to obtain a potato protein fiber solution; mixing the potato protein fiber solution with the Arabic gum solution, and freeze-drying to prepare a compound; preparing a compound solution, and mixing the compound solution with the oil phase; and shearing and dispersing to obtain the oil gel high internal phase pickering emulsion. The stability, uniformity, oil holding capacity, apparent viscosity, texture and other characteristics of the prepared oleogel are greatly improved, the application range of the oleogel in food is widened, the oleogel can serve as a fat substitute to be applied to biscuits, cakes and other food, the oleogel can also serve as a carrier for loading, embedding and controlled release of bioactive substances, and the utilization rate of the bioactive substances is increased.

The utility model belongs to the technical field of desalted water spraying systems of screw compressor units, and discloses a heating system for a desalted water spraying system in a coke-oven gas screw compressor unit. According to the heating system, after heat exchange is conducted through the gas-liquid cooler, water with waste heat conducts primary heating on circulating desalted water through the heat exchanger, and meanwhile an electric heating belt is arranged on a pipeline before the water enters the filter to conduct secondary heating on the circulating desalted water. Therefore, according to the improved desalted water spraying system, the cooling phenomenon of the sprayed saline water is reduced through circulating desalted water heated twice, it is guaranteed that the sprayed saline water cannot enter the filter due to cold to cause coalescence in a filter element, the replacement frequency of the filter element is reduced, the service life of the filter is prolonged, and the operation stability of a coke-oven gas screw compressor unit is improved. Meanwhile, the heat exchanger is introduced into the improvement, so that the heat energy of the gas-liquid cooler can be recycled, the electric energy loss of the electric heating belt is reduced, and the production cost of an enterprise is further reduced.

The invention relates to an efficient flotation separation method for complex copper-iron sulfide ore, and belongs to the technical field of flotation reagents. A combined collecting agent is prepared, the combined collecting agent is composed of 75-80 parts of amino trimethylene phosphonic acid, 10-15 parts of xanthate, 5-10 parts of ethionine ester and 0.5-1 part of polyol fatty acid ester, and the mass concentration of the combined collecting agent is 30%-50%; pulping: adding 200-800g / t of vulcanizing agent into the complex copper-iron sulfide ore, grinding the complex copper-iron sulfide ore until the complex copper-iron sulfide ore with the fineness of-0.074 mm accounts for 65-90%, and then pulping the complex copper-iron sulfide ore until ore pulp with the solid concentration of 25-40wt% is obtained; and flotation is conducted, specifically, the ore pulp with the solid concentration being 25-40 wt% is subjected to flotation operation of one-time roughing, three to four times of concentration and two to three times of sweeping, copper concentrate and sulfur tailings are obtained, and the flotation process is conducted through a combined collecting agent in the flotation operation process of one-time roughing, three to four times of concentration and two to three times of sweeping. The novel combined collecting agent is developed to serve as a flotation reagent for efficient separation of chalcopyrite and pyrite, and an excellent complex copper-iron sulfide mineral flotation separation effect is achieved in ore pulp under the low-alkali condition.

The invention relates to the technical field of gas-liquid mixers, in particular to a membrane-distributed gas-liquid mixer and application thereof, and the membrane-distributed gas-liquid mixer comprises a ceramic membrane tube, a sintered membrane and a shell; the shell comprises a liquid inlet, a gas inlet and a gas-liquid mixed outlet, the ceramic membrane tube is arranged in the shell, a liquid inlet of the ceramic membrane tube is connected with the liquid inlet of the shell, and a liquid outlet of the ceramic membrane tube is connected with the gas-liquid mixed outlet through the sintered membrane. When the membrane distributed gas-liquid mixer is applied, in practical application, through the combined action of the ceramic membrane tube and the sintered membrane, the gas-liquid mixing efficiency can be effectively improved, the size of bubbles is reduced, and the membrane distributed gas-liquid mixer has the advantages of being simple in structure, low in cost, high in gas-liquid mixing efficiency and small in bubble size.

The invention relates to the technical field of vegetable protein beverages, in particular to a coconut juice vegetable protein beverage and a preparation method thereof. The coconut milk vegetable protein beverage comprises coconut milk, saccharides, isomerized lactose liquid, sodium caseinate, lactic acid fatty glyceride, propylene glycol alginate, sodium stearoyl lactylate, gleditsia sinensis lam carbohydrate gum, beta-cyclodextrine, a pH regulator and water. The preparation method of the coconut juice vegetable protein beverage comprises the following steps: mixing the components, then shearing and homogenizing, then homogenizing under pressure, and finally filling, sterilizing and cooling to obtain the coconut juice vegetable protein beverage. According to the preparation method of the coconut juice vegetable protein beverage provided by the invention, the stability of the coconut juice vegetable protein beverage is improved, and grease layering and protein precipitation of the coconut juice vegetable protein beverage are prevented.

The invention discloses a method for purifying cefazolin acid, which belongs to the technical field of medicine, and comprises the following steps: mixing a material A, water and triethylamine, dissolving, controlling the temperature, and filtering to obtain a solution A; the material A accounting for 10% of the weight of the solution A, the water accounting for 10% of the weight of the solution A and the triethylamine accounting for 5% of the weight of the solution A are mixed, stirred, dissolved and filtered; rapidly stirring the filtered solution under a 40HZ ultrasonic condition, rapidly adding a hydrochloric acid solution, adjusting the pH value to be less than 3, and controlling the temperature; then reducing the stirring speed, and stirring again to prepare a seed crystal mixed solution; simultaneously adding the solution A and the hydrochloric acid solution into the seed crystal mixed solution, and controlling the pH value to be less than 3; after the solution A is added, growing crystals, continuously adding a hydrochloric acid solution, and stabilizing the pH value to be less than 2; growing the crystal again; filtering, washing and drying to obtain high-purity cefazolin acid powder. The high-purity cefazolin acid powder is prepared by adopting a stable number of crystal nucleuses and an equal low-concentration crystallization technology.

The invention relates to the technical field of chemical equipment, and particularly discloses a horizontal alkylation reactor with an acid-repellent flow-guide anti-deposition structure, the horizontal alkylation reactor comprises a shell, the shell is internally provided with a reaction cavity; the stirring assembly is arranged in the reaction cavity, and the stirring assembly is parallel to the axis of the shell; the flow guide assemblies are arranged at the bottom of the reaction cavity, each flow guide assembly comprises a plurality of flow guide plates, the flow guide plates are arranged at intervals along the axis of the shell, the flow guide plates between every two adjacent flow guide assemblies are arranged in a staggered mode, the flow guide plates are obliquely arranged in the reaction cavity, and acid repellent layers are arranged on the surfaces of the flow guide plates; the acid repellent layer is used for reducing the adhesive force of acid drops on the surface of the guide plate. The method has the effect of preventing acid phase deposition.

This invention discloses a processing method for high-sulfur, high-nitrogen inferior diesel fuel. The method includes the following steps: (1) In the presence of hydrogen, the inferior diesel fuel is mixed with an alkali metal and then enters an alkali metal treatment reaction zone; (2) The reaction effluent obtained in step (1) enters a separation unit to obtain a liquid phase stream; (3) The liquid phase stream in step (2) is mixed with an oxidant and enters an oxidation reaction zone for reaction; (4) The reaction effluent obtained in step (3) enters an extraction unit, and the final clean diesel fuel product is obtained under the action of an extractant. The method uses non-hydrogenation technology to process inferior diesel fuel and can directly produce clean diesel fuel with low sulfur, low nitrogen, and high cetane number.

The invention relates to the technical field of vaccine preparations, and discloses an oil-in-water adjuvant containing squalene as well as a preparation method and application of the oil-in-water adjuvant. Polysorbate 80; sorbitan trioleate; a temperature sensitive nonionic block copolymer; an amino acid CMT modulator; a polyol CMT modifier; citric acid; sodium citrate; and the balance of water for injection. The preparation method comprises the following steps: preparing an oil phase; the preparation method comprises the following steps: dissolving a temperature-sensitive nonionic block copolymer, a CMT regulator, citric acid and sodium citrate in low-temperature water for injection, and carrying out heating pretreatment to obtain a water phase; shearing and emulsifying the water phase and the oil phase at a specific temperature; and finally, carrying out speed-controlled cooling and filtering on the hot emulsion. Through the composite formula and the specific process, the long-term storage stability of the adjuvant is remarkably improved, the immunocompetence of the vaccine is guaranteed, the process reproducibility is good, and the production cost is reduced.

The invention discloses a beneficiation method for improving the iron grade of ultra-micro-fine particle magnetite by using ultrasonic waves and a dispersing agent, which comprises the following steps: (1) taking an ultra-micro-fine particle magnetite sample in a container, and adding water for size mixing to obtain magnetite ore pulp; (2) an ultrasonic disperser is used for conducting ultrasonic dispersion on the ultra-fine particle magnetite ore pulp, agglomeration structures among mineral particles are destroyed, and the mineral particles are evenly dispersed in the ore pulp; (3) a dispersing agent is added, a layer of film is formed between magnetite particles and a liquid medium under the action of a stirrer, repulsive force among the particles is improved, and therefore the particles are prevented from being gathered again; and (4) the pretreated ore pulp is subjected to wet type magnetic separation operation through a wet type roller magnetic separator, and a magnetic separation concentrate product is obtained. By means of ultrasonic pretreatment and addition of a dispersing agent sodium hexametaphosphate, the grade of the ultra-fine particle magnetite magnetic concentrate can be effectively improved. The technological process is short and easy to operate and control, the grade of magnetic concentrate is improved, the mineral separation efficiency is improved, and the method is an efficient and economical ultra-fine particle magnetite separation method.

The invention belongs to the field of modification of high-performance fiber materials and preparation of specialty paper, and discloses a modified aramid fiber, high-strength, high-uniformity and high-water-absorption aramid paper and a preparation method and application of the modified aramid fiber and the high-strength, high-uniformity and high-water-absorption aramid paper. The modified aramid fiber comprises bacterial cellulose and aramid fiber in a mass ratio of (0.1-1.5): (2-15). The aramid paper is prepared from the following components in parts by weight: 2 to 16.5 parts of modified aramid fiber, 0.16 to 1.2 parts of hot melting fiber, 0.4 to 2 parts of surfactant and 0.01 to 0.1 part of dispersing agent. Hydrophilic groups on the surfaces of the aramid fibers are effectively increased by utilizing interaction between the bacterial cellulose and the aramid fibers, the prepared aramid paper is high in strength, and compared with aramid paper not modified by the bacterial cellulose, the tensile property is remarkably improved by 244%-1294%, and the tensile strength of the aramid paper is greatly improved. And meanwhile, good uniformity and greatly enhanced water absorption are shown. In addition, the aramid paper has excellent absorption capacity on silica sol, and the application prospect is extremely wide.

The invention discloses a carbon capture device and method, which are used for integrating CO2 absorption and desorption processes of carbon capture in the same device, the device at least comprises: an absorption unit arranged at the upper part of the device; in the absorption unit, the absorption slurry is in contact with carbon-containing gas from top to bottom so as to carry out gas-liquid mass transfer under a high-pressure condition; the solid phase part of the absorption slurry is powder of a supported ionic liquid, and the ionic liquid is an amino-containing ionic liquid; the desorption unit is arranged below the absorption unit and is isolated by a liquid seal; under the vacuum condition, the absorbed slurry is subjected to CO2 desorption in a desorption unit, the desorbed slurry is recycled after being subjected to gas-liquid separation, and CO2 is discharged. According to the invention, the gas-liquid mass transfer efficiency can be effectively improved and the absorption rate of CO2 can be increased through the nano-micro interface strengthening effect; absorption and desorption are integrated into the whole device, different areas are isolated in a liquid sealing mode, and the functions of high-pressure absorption and vacuum desorption can be achieved in the same device.